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a0d0e21e 1/* perl.h
a687059c 2 *
9607fc9c 3 * Copyright (c) 1987-1997, Larry Wall
a687059c 4 *
352d5a3a
LW		 5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
8d063cd8 7 *
8d063cd8 8 */
85e6fe83
LW		 9#ifndef H_PERL
10#define H_PERL 1
a0d0e21e 11#define OVERLOAD
8d063cd8 12
760ac839
LW		 13#ifdef PERL_FOR_X2P
14/*
15 * This file is being used for x2p stuff.
16 * Above symbol is defined via -D in 'x2p/Makefile.SH'
17 * Decouple x2p stuff from some of perls more extreme eccentricities.
18 */
760ac839 19#undef EMBED
55497cff 20#undef NO_EMBED
21#define NO_EMBED
22#undef MULTIPLICITY
760ac839
LW		 23#undef USE_STDIO
24#define USE_STDIO
25#endif /* PERL_FOR_X2P */
26
71be2cbc 27#define VOIDUSED 1
28#include "config.h"
29
30#include "embed.h"
31
728e2803 32/*
33 * STMT_START { statements; } STMT_END;
34 * can be used as a single statement, as in
35 * if (x) STMT_START { ... } STMT_END; else ...
36 *
37 * Trying to select a version that gives no warnings...
38 */
39#if !(defined(STMT_START) && defined(STMT_END))
169d69b2 40# if defined(__GNUC__) && !defined(__STRICT_ANSI__) && !defined(__cplusplus)
728e2803 41# define STMT_START (void)( /* gcc supports ``({ STATEMENTS; })'' */
42# define STMT_END )
43# else
44 /* Now which other defined()s do we need here ??? */
45# if (VOIDFLAGS) && (defined(sun) || defined(__sun__))
46# define STMT_START if (1)
47# define STMT_END else (void)0
48# else
49# define STMT_START do
50# define STMT_END while (0)
51# endif
52# endif
53#endif
54
55497cff 55/*
56 * SOFT_CAST can be used for args to prototyped functions to retain some
57 * type checking; it only casts if the compiler does not know prototypes.
58 */
59#if defined(CAN_PROTOTYPE) && defined(DEBUGGING_COMPILE)
60#define SOFT_CAST(type)
61#else
62#define SOFT_CAST(type) (type)
63#endif
64
79072805
LW		 65#ifndef BYTEORDER
66# define BYTEORDER 0x1234
67#endif
68
69/* Overall memory policy? */
70#ifndef CONSERVATIVE
71# define LIBERAL 1
72#endif
73
74/*
75 * The following contortions are brought to you on behalf of all the
76 * standards, semi-standards, de facto standards, not-so-de-facto standards
77 * of the world, as well as all the other botches anyone ever thought of.
78 * The basic theory is that if we work hard enough here, the rest of the
79 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
80 */
ac58e20f 81
ee0007ab 82/* define this once if either system, instead of cluttering up the src */
68dc0745 83#if defined(MSDOS) || defined(atarist) || defined(WIN32)
ee0007ab
LW		 84#define DOSISH 1
85#endif
86
a0d0e21e 87#if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
352d5a3a
LW		 88# define STANDARD_C 1
89#endif
90
68dc0745 91#if defined(__cplusplus) || defined(WIN32)
92# define DONT_DECLARE_STD 1
93#endif
94
352d5a3a 95#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805
LW		 96# ifdef __cplusplus
97# define VOL // to temporarily suppress warnings
98# else
99# define VOL volatile
100# endif
663a0e37 101#else
79072805 102# define VOL
663a0e37
LW		 103#endif
104
bbce6d69 105#define TAINT (tainted = TRUE)
106#define TAINT_NOT (tainted = FALSE)
107#define TAINT_IF(c) if (c) { tainted = TRUE; }
108#define TAINT_ENV() if (tainting) { taint_env(); }
109#define TAINT_PROPER(s) if (tainting) { taint_proper(no_security, s); }
a687059c 110
a6e633de 111/* XXX All process group stuff is handled in pp_sys.c. Should these
112 defines move there? If so, I could simplify this a lot. --AD 9/96.
113*/
114/* Process group stuff changed from traditional BSD to POSIX.
115 perlfunc.pod documents the traditional BSD-style syntax, so we'll
116 try to preserve that, if possible.
117*/
118#ifdef HAS_SETPGID
119# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 120#else
a6e633de 121# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
122# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
123# else
124# ifdef HAS_SETPGRP2 /* DG/UX */
125# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
126# endif
127# endif
128#endif
129#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
130# define HAS_SETPGRP /* Well, effectively it does . . . */
131#endif
132
133/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
134 our life easier :-) so we'll try it.
135*/
136#ifdef HAS_GETPGID
137# define BSD_GETPGRP(pid) getpgid((pid))
138#else
139# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
140# define BSD_GETPGRP(pid) getpgrp((pid))
141# else
142# ifdef HAS_GETPGRP2 /* DG/UX */
143# define BSD_GETPGRP(pid) getpgrp2((pid))
144# endif
145# endif
146#endif
147#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
148# define HAS_GETPGRP /* Well, effectively it does . . . */
149#endif
150
151/* These are not exact synonyms, since setpgrp() and getpgrp() may
152 have different behaviors, but perl.h used to define USE_BSDPGRP
153 (prior to 5.003_05) so some extension might depend on it.
154*/
155#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
156# ifndef USE_BSDPGRP
157# define USE_BSDPGRP
158# endif
663a0e37
LW		 159#endif
160
760ac839
LW		 161#ifndef _TYPES_ /* If types.h defines this it's easy. */
162# ifndef major /* Does everyone's types.h define this? */
163# include <sys/types.h>
164# endif
165#endif
166
167#ifdef __cplusplus
168# ifndef I_STDARG
169# define I_STDARG 1
170# endif
171#endif
172
173#ifdef I_STDARG
174# include <stdarg.h>
175#else
176# ifdef I_VARARGS
177# include <varargs.h>
178# endif
179#endif
180
181#include "perlio.h"
0c30d9ec 182
4633a7c4 183#ifdef USE_NEXT_CTYPE
0c30d9ec 184
185#if NX_CURRENT_COMPILER_RELEASE >= 400
186#include <objc/NXCType.h>
187#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
a0d0e21e 188#include <appkit/NXCType.h>
0c30d9ec 189#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
190
191#else /* !USE_NEXT_CTYPE */
fe14fcc3 192#include <ctype.h>
0c30d9ec 193#endif /* USE_NEXT_CTYPE */
a0d0e21e
LW		 194
195#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
196#undef METHOD
197#endif
198
36477c24 199#ifdef I_LOCALE
200# include <locale.h>
201#endif
202
203#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
204# define USE_LOCALE
205# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
206 && defined(HAS_STRXFRM)
207# define USE_LOCALE_COLLATE
208# endif
209# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
210# define USE_LOCALE_CTYPE
211# endif
212# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
213# define USE_LOCALE_NUMERIC
214# endif
215#endif /* !NO_LOCALE && HAS_SETLOCALE */
216
fe14fcc3 217#include <setjmp.h>
79072805 218
a0d0e21e 219#ifdef I_SYS_PARAM
79072805
LW		 220# ifdef PARAM_NEEDS_TYPES
221# include <sys/types.h>
222# endif
223# include <sys/param.h>
352d5a3a 224#endif
79072805
LW		 225
226
227/* Use all the "standard" definitions? */
a0d0e21e 228#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 229# include <stdlib.h>
ff68c719 230#endif
03a14243 231
55497cff 232/* This comes after <stdlib.h> so we don't try to change the standard
233 * library prototypes; we'll use our own in proto.h instead. */
234
4633a7c4 235#ifdef MYMALLOC
55497cff 236
760ac839 237# ifdef HIDEMYMALLOC
55497cff 238# define malloc Mymalloc
239# define calloc Mycalloc
05effc97 240# define realloc Myremalloc
55497cff 241# define free Myfree
242# endif
243# ifdef EMBEDMYMALLOC
244# define malloc Perl_malloc
245# define calloc Perl_calloc
246# define realloc Perl_realloc
247# define free Perl_free
4633a7c4 248# endif
55497cff 249
250# undef safemalloc
251# undef safecalloc
252# undef saferealloc
253# undef safefree
254# define safemalloc malloc
255# define safecalloc calloc
4633a7c4 256# define saferealloc realloc
55497cff 257# define safefree free
258
259#endif /* MYMALLOC */
4633a7c4 260
a0d0e21e
LW		 261#define MEM_SIZE Size_t
262
ff68c719 263#if defined(STANDARD_C) && defined(I_STDDEF)
264# include <stddef.h>
71be2cbc 265# define STRUCT_OFFSET(s,m) offsetof(s,m)
ff68c719 266#else
71be2cbc 267# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
ff68c719 268#endif
269
a0d0e21e
LW		 270#if defined(I_STRING) || defined(__cplusplus)
271# include <string.h>
272#else
273# include <strings.h>
274#endif
275
276#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
277#define strchr index
278#define strrchr rindex
279#endif
280
16d20bd9
AD		 281#ifdef I_MEMORY
282# include <memory.h>
283#endif
284
fe14fcc3 285#ifdef HAS_MEMCPY
85e6fe83 286# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 287# ifndef memcpy
a0d0e21e 288 extern char * memcpy _((char*, char*, int));
ee0007ab
LW		 289# endif
290# endif
291#else
292# ifndef memcpy
293# ifdef HAS_BCOPY
294# define memcpy(d,s,l) bcopy(s,d,l)
295# else
296# define memcpy(d,s,l) my_bcopy(s,d,l)
297# endif
298# endif
299#endif /* HAS_MEMCPY */
fe14fcc3 300
ee0007ab 301#ifdef HAS_MEMSET
85e6fe83 302# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 303# ifndef memset
a0d0e21e 304 extern char *memset _((char*, int, int));
ee0007ab
LW		 305# endif
306# endif
ee0007ab 307#else
fc36a67e 308# define memset(d,c,l) my_memset(d,c,l)
ee0007ab
LW		 309#endif /* HAS_MEMSET */
310
85e6fe83 311#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 312# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805
LW		 313# define memmove(d,s,l) bcopy(s,d,l)
314# else
2304df62 315# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805
LW		 316# define memmove(d,s,l) memcpy(d,s,l)
317# else
318# define memmove(d,s,l) my_bcopy(s,d,l)
319# endif
320# endif
d9d8d8de 321#endif
378cc40b 322
36477c24 323#if defined(mips) && defined(ultrix) && !defined(__STDC__)
324# undef HAS_MEMCMP
325#endif
326
327#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
328# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
329# ifndef memcmp
330 extern int memcmp _((char*, char*, int));
331# endif
332# endif
333# ifdef BUGGY_MSC
334 # pragma function(memcmp)
335# endif
336#else
337# ifndef memcmp
338# define memcmp my_memcmp
339# endif
340#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
341
fc36a67e 342#ifndef memzero
c635e13b 343# ifdef HAS_MEMSET
344# define memzero(d,l) memset(d,0,l)
fc36a67e 345# else
c635e13b 346# ifdef HAS_BZERO
347# define memzero(d,l) bzero(d,l)
fc36a67e 348# else
349# define memzero(d,l) my_bzero(d,l)
350# endif
351# endif
352#endif
353
36477c24 354#ifndef HAS_BCMP
355# ifndef bcmp
356# define bcmp(s1,s2,l) memcmp(s1,s2,l)
357# endif
358#endif /* !HAS_BCMP */
359
ae986130 360#ifdef I_NETINET_IN
79072805 361# include <netinet/in.h>
ae986130
LW		 362#endif
363
1aef975c 364#ifdef I_SYS_STAT
8d063cd8 365#include <sys/stat.h>
1aef975c 366#endif
79072805 367
a0d0e21e
LW		 368/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
369 like UTekV) are broken, sometimes giving false positives. Undefine
370 them here and let the code below set them to proper values.
371
372 The ghs macro stands for GreenHills Software C-1.8.5 which
373 is the C compiler for sysV88 and the various derivatives.
374 This header file bug is corrected in gcc-2.5.8 and later versions.
375 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
376
377#if defined(uts) || (defined(m88k) && defined(ghs))
79072805
LW		 378# undef S_ISDIR
379# undef S_ISCHR
380# undef S_ISBLK
381# undef S_ISREG
382# undef S_ISFIFO
383# undef S_ISLNK
ee0007ab 384#endif
135863df 385
663a0e37
LW		 386#ifdef I_TIME
387# include <time.h>
ffed7fef 388#endif
663a0e37 389
fe14fcc3 390#ifdef I_SYS_TIME
85e6fe83 391# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 392# define KERNEL
393# endif
394# include <sys/time.h>
85e6fe83 395# ifdef I_SYS_TIME_KERNEL
663a0e37
LW		 396# undef KERNEL
397# endif
a687059c 398#endif
135863df 399
55497cff 400#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 401# include <sys/times.h>
d9d8d8de 402#endif
8d063cd8 403
fe14fcc3 404#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 405# undef HAS_STRERROR
663a0e37
LW		 406#endif
407
a0d0e21e
LW		 408#ifndef HAS_MKFIFO
409# ifndef mkfifo
410# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
411# endif
412#endif /* !HAS_MKFIFO */
413
663a0e37 414#include <errno.h>
ed6116ce 415#ifdef HAS_SOCKET
85e6fe83 416# ifdef I_NET_ERRNO
ed6116ce
LW		 417# include <net/errno.h>
418# endif
419#endif
f86702cc 420
421#ifdef VMS
422# define SETERRNO(errcode,vmserrcode) \
423 STMT_START { \
424 set_errno(errcode); \
425 set_vaxc_errno(vmserrcode); \
426 } STMT_END
748a9306 427#else
f86702cc 428# define SETERRNO(errcode,vmserrcode) errno = (errcode)
748a9306 429#endif
ed6116ce 430
55497cff 431#ifndef errno
79072805 432 extern int errno; /* ANSI allows errno to be an lvalue expr */
d9d8d8de 433#endif
663a0e37 434
2304df62 435#ifdef HAS_STRERROR
a0d0e21e
LW		 436# ifdef VMS
437 char *strerror _((int,...));
438# else
68dc0745 439#ifndef DONT_DECLARE_STD
a0d0e21e 440 char *strerror _((int));
68dc0745 441#endif
a0d0e21e 442# endif
2304df62
AD		 443# ifndef Strerror
444# define Strerror strerror
445# endif
446#else
447# ifdef HAS_SYS_ERRLIST
79072805
LW		 448 extern int sys_nerr;
449 extern char *sys_errlist[];
2304df62
AD		 450# ifndef Strerror
451# define Strerror(e) \
79072805 452 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 453# endif
79072805 454# endif
35c8bce7 455#endif
663a0e37 456
2304df62 457#ifdef I_SYS_IOCTL
79072805
LW		 458# ifndef _IOCTL_
459# include <sys/ioctl.h>
460# endif
a687059c
LW		 461#endif
462
ee0007ab 463#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805
LW		 464# ifdef HAS_SOCKETPAIR
465# undef HAS_SOCKETPAIR
466# endif
2304df62
AD		 467# ifdef I_NDBM
468# undef I_NDBM
79072805 469# endif
a687059c
LW		 470#endif
471
a687059c 472#if INTSIZE == 2
79072805
LW		 473# define htoni htons
474# define ntohi ntohs
a687059c 475#else
79072805
LW		 476# define htoni htonl
477# define ntohi ntohl
a687059c
LW		 478#endif
479
a0d0e21e 480/* Configure already sets Direntry_t */
35c8bce7 481#if defined(I_DIRENT)
663a0e37 482# include <dirent.h>
a0d0e21e
LW		 483# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
484# include <sys/dir.h>
485# endif
ae986130 486#else
fe14fcc3 487# ifdef I_SYS_NDIR
79a0689e 488# include <sys/ndir.h>
663a0e37 489# else
fe14fcc3 490# ifdef I_SYS_DIR
79a0689e
LW		 491# ifdef hp9000s500
492# include <ndir.h> /* may be wrong in the future */
493# else
494# include <sys/dir.h>
495# endif
663a0e37
LW		 496# endif
497# endif
4633a7c4 498#endif
a687059c 499
352d5a3a
LW		 500#ifdef FPUTS_BOTCH
501/* work around botch in SunOS 4.0.1 and 4.0.2 */
502# ifndef fputs
79072805 503# define fputs(sv,fp) fprintf(fp,"%s",sv)
352d5a3a
LW		 504# endif
505#endif
506
c623bd54
LW		 507/*
508 * The following gobbledygook brought to you on behalf of __STDC__.
509 * (I could just use #ifndef __STDC__, but this is more bulletproof
510 * in the face of half-implementations.)
511 */
512
513#ifndef S_IFMT
514# ifdef _S_IFMT
515# define S_IFMT _S_IFMT
516# else
517# define S_IFMT 0170000
518# endif
519#endif
520
521#ifndef S_ISDIR
522# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
523#endif
524
525#ifndef S_ISCHR
526# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
527#endif
528
529#ifndef S_ISBLK
fe14fcc3
LW		 530# ifdef S_IFBLK
531# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
532# else
533# define S_ISBLK(m) (0)
534# endif
c623bd54
LW		 535#endif
536
537#ifndef S_ISREG
538# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
539#endif
540
541#ifndef S_ISFIFO
fe14fcc3
LW		 542# ifdef S_IFIFO
543# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
544# else
545# define S_ISFIFO(m) (0)
546# endif
c623bd54
LW		 547#endif
548
549#ifndef S_ISLNK
550# ifdef _S_ISLNK
551# define S_ISLNK(m) _S_ISLNK(m)
552# else
553# ifdef _S_IFLNK
554# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
555# else
556# ifdef S_IFLNK
557# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
558# else
559# define S_ISLNK(m) (0)
560# endif
561# endif
562# endif
563#endif
564
565#ifndef S_ISSOCK
566# ifdef _S_ISSOCK
567# define S_ISSOCK(m) _S_ISSOCK(m)
568# else
569# ifdef _S_IFSOCK
570# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
571# else
572# ifdef S_IFSOCK
573# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
574# else
575# define S_ISSOCK(m) (0)
576# endif
577# endif
578# endif
579#endif
580
581#ifndef S_IRUSR
582# ifdef S_IREAD
583# define S_IRUSR S_IREAD
584# define S_IWUSR S_IWRITE
585# define S_IXUSR S_IEXEC
586# else
587# define S_IRUSR 0400
588# define S_IWUSR 0200
589# define S_IXUSR 0100
590# endif
591# define S_IRGRP (S_IRUSR>>3)
592# define S_IWGRP (S_IWUSR>>3)
593# define S_IXGRP (S_IXUSR>>3)
594# define S_IROTH (S_IRUSR>>6)
595# define S_IWOTH (S_IWUSR>>6)
596# define S_IXOTH (S_IXUSR>>6)
597#endif
598
599#ifndef S_ISUID
600# define S_ISUID 04000
601#endif
602
603#ifndef S_ISGID
604# define S_ISGID 02000
605#endif
606
79072805
LW		 607#ifdef ff_next
608# undef ff_next
352d5a3a
LW		 609#endif
610
a0d0e21e 611#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa
LW		 612# define SLOPPYDIVIDE
613#endif
614
748a9306
LW		 615#ifdef UV
616#undef UV
617#endif
618
27d4fb96 619/* XXX QUAD stuff is not currently supported on most systems.
620 Specifically, perl internals don't support long long. Among
621 the many problems is that some compilers support long long,
622 but the underlying library functions (such as sprintf) don't.
623 Some things do work (such as quad pack/unpack on convex);
624 also some systems use long long for the fpos_t typedef. That
625 seems to work too.
626
627 The IV type is supposed to be long enough to hold any integral
628 value or a pointer.
629 --Andy Dougherty August 1996
630*/
631
f86702cc 632#ifdef cray
633# define Quad_t int
634#else
635# ifdef convex
636# define Quad_t long long
45d8adaa 637# else
ff0cee69 638# if BYTEORDER > 0xFFFF
639# define Quad_t long
45d8adaa
LW		 640# endif
641# endif
f86702cc 642#endif
643
644#ifdef Quad_t
645# define HAS_QUAD
748a9306
LW		 646 typedef Quad_t IV;
647 typedef unsigned Quad_t UV;
27d4fb96 648# define IV_MAX PERL_QUAD_MAX
649# define IV_MIN PERL_QUAD_MIN
650# define UV_MAX PERL_UQUAD_MAX
651# define UV_MIN PERL_UQUAD_MIN
79072805 652#else
748a9306
LW		 653 typedef long IV;
654 typedef unsigned long UV;
27d4fb96 655# define IV_MAX PERL_LONG_MAX
656# define IV_MIN PERL_LONG_MIN
657# define UV_MAX PERL_ULONG_MAX
658# define UV_MIN PERL_ULONG_MIN
79072805
LW		 659#endif
660
760ac839
LW		 661/* Previously these definitions used hardcoded figures.
662 * It is hoped these formula are more portable, although
663 * no data one way or another is presently known to me.
664 * The "PERL_" names are used because these calculated constants
665 * do not meet the ANSI requirements for LONG_MAX, etc., which
666 * need to be constants acceptable to #if - kja
667 * define PERL_LONG_MAX 2147483647L
668 * define PERL_LONG_MIN (-LONG_MAX - 1)
669 * define PERL ULONG_MAX 4294967295L
670 */
671
672#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
673# include <limits.h>
674#else
675#ifdef I_VALUES
676# include <values.h>
677#endif
678#endif
679
99abf803 680/*
681 * Try to figure out max and min values for the integral types. THE CORRECT
682 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
683 * following hacks are used if neither limits.h or values.h provide them:
684 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
685 * for types < int: (unsigned TYPE)~(unsigned)0
686 * The argument to ~ must be unsigned so that later signed->unsigned
687 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
688 * and it must not be smaller than int because ~ does integral promotion.
689 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
690 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
691 * The latter is a hack which happens to work on some machines but
692 * does *not* catch any random system, or things like integer types
693 * with NaN if that is possible.
694 *
695 * All of the types are explicitly cast to prevent accidental loss of
696 * numeric range, and in the hope that they will be less likely to confuse
697 * over-eager optimizers.
698 *
699 */
27d4fb96 700
99abf803 701#define PERL_UCHAR_MIN ((unsigned char)0)
702
703#ifdef UCHAR_MAX
704# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 705#else
99abf803 706# ifdef MAXUCHAR
707# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 708# else
99abf803 709# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96 710# endif
711#endif
99abf803 712
713/*
714 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
715 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
716 * depending on local options. Until Configure detects this (or at least
717 * detects whether the "signed" keyword is available) the CHAR ranges
718 * will not be included. UCHAR functions normally.
719 * - kja
720 */
27d4fb96 721
99abf803 722#define PERL_USHORT_MIN ((unsigned short)0)
723
724#ifdef USHORT_MAX
725# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 726#else
99abf803 727# ifdef MAXUSHORT
728# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 729# else
99abf803 730# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
27d4fb96 731# endif
732#endif
733
27d4fb96 734#ifdef SHORT_MAX
99abf803 735# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96 736#else
737# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 738# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 739# else
99abf803 740# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
27d4fb96 741# endif
742#endif
743
744#ifdef SHORT_MIN
99abf803 745# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96 746#else
747# ifdef MINSHORT
99abf803 748# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 749# else
750# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
751# endif
752#endif
753
99abf803 754#ifdef UINT_MAX
755# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 756#else
99abf803 757# ifdef MAXUINT
758# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 759# else
99abf803 760# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96 761# endif
762#endif
763
99abf803 764#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 765
766#ifdef INT_MAX
99abf803 767# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96 768#else
769# ifdef MAXINT /* Often used in <values.h> */
99abf803 770# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 771# else
99abf803 772# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96 773# endif
774#endif
775
776#ifdef INT_MIN
99abf803 777# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 778#else
779# ifdef MININT
99abf803 780# define PERL_INT_MIN ((int)MININT)
27d4fb96 781# else
782# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
783# endif
784#endif
785
99abf803 786#ifdef ULONG_MAX
787# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 788#else
99abf803 789# ifdef MAXULONG
790# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 791# else
99abf803 792# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96 793# endif
794#endif
795
99abf803 796#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 797
760ac839 798#ifdef LONG_MAX
99abf803 799# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839
LW		 800#else
801# ifdef MAXLONG /* Often used in <values.h> */
99abf803 802# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 803# else
99abf803 804# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839
LW		 805# endif
806#endif
807
808#ifdef LONG_MIN
99abf803 809# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839
LW		 810#else
811# ifdef MINLONG
99abf803 812# define PERL_LONG_MIN ((long)MINLONG)
760ac839 813# else
27d4fb96 814# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839
LW		 815# endif
816#endif
817
99abf803 818#ifdef HAS_QUAD
819
820# ifdef UQUAD_MAX
821# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
760ac839 822# else
99abf803 823# define PERL_UQUAD_MAX (~(UV)0)
760ac839 824# endif
760ac839 825
99abf803 826# define PERL_UQUAD_MIN ((UV)0)
27d4fb96 827
27d4fb96 828# ifdef QUAD_MAX
99abf803 829# define PERL_QUAD_MAX ((IV)QUAD_MAX)
27d4fb96 830# else
99abf803 831# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
27d4fb96 832# endif
833
834# ifdef QUAD_MIN
99abf803 835# define PERL_QUAD_MIN ((IV)QUAD_MIN)
27d4fb96 836# else
a6e633de 837# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 838# endif
839
760ac839
LW		 840#endif
841
ee0007ab 842typedef MEM_SIZE STRLEN;
450a55e4 843
79072805
LW		 844typedef struct op OP;
845typedef struct cop COP;
846typedef struct unop UNOP;
847typedef struct binop BINOP;
848typedef struct listop LISTOP;
849typedef struct logop LOGOP;
850typedef struct condop CONDOP;
851typedef struct pmop PMOP;
852typedef struct svop SVOP;
853typedef struct gvop GVOP;
854typedef struct pvop PVOP;
79072805
LW		 855typedef struct loop LOOP;
856
857typedef struct Outrec Outrec;
93a17b20 858typedef struct interpreter PerlInterpreter;
79072805 859typedef struct ff FF;
79072805
LW		 860typedef struct sv SV;
861typedef struct av AV;
862typedef struct hv HV;
863typedef struct cv CV;
378cc40b 864typedef struct regexp REGEXP;
79072805 865typedef struct gp GP;
0c30d9ec 866typedef struct gv GV;
8990e307 867typedef struct io IO;
79072805
LW		 868typedef struct context CONTEXT;
869typedef struct block BLOCK;
870
871typedef struct magic MAGIC;
ed6116ce 872typedef struct xrv XRV;
79072805
LW		 873typedef struct xpv XPV;
874typedef struct xpviv XPVIV;
ff68c719 875typedef struct xpvuv XPVUV;
79072805
LW		 876typedef struct xpvnv XPVNV;
877typedef struct xpvmg XPVMG;
878typedef struct xpvlv XPVLV;
879typedef struct xpvav XPVAV;
880typedef struct xpvhv XPVHV;
881typedef struct xpvgv XPVGV;
882typedef struct xpvcv XPVCV;
883typedef struct xpvbm XPVBM;
884typedef struct xpvfm XPVFM;
8990e307 885typedef struct xpvio XPVIO;
79072805
LW		 886typedef struct mgvtbl MGVTBL;
887typedef union any ANY;
8d063cd8 888
378cc40b 889#include "handy.h"
a0d0e21e 890
16d20bd9
AD		 891typedef I32 (*filter_t) _((int, SV *, int));
892#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
893#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
894#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
895
748a9306 896#ifdef DOSISH
4633a7c4
LW		 897# if defined(OS2)
898# include "os2ish.h"
899# else
748a9306 900# include "dosish.h"
4633a7c4 901# endif
a0d0e21e 902#else
748a9306
LW		 903# if defined(VMS)
904# include "vmsish.h"
905# else
0c30d9ec 906# if defined(PLAN9)
907# include "./plan9/plan9ish.h"
908# else
909# include "unixish.h"
910# endif
748a9306
LW		 911# endif
912#endif
3fc1aec6 913
68dc0745 914#ifdef VMS
915# define STATUS_NATIVE statusvalue_vms
916# define STATUS_NATIVE_EXPORT \
917 ((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
918# define STATUS_NATIVE_SET(n) \
919 STMT_START { \
920 statusvalue_vms = (n); \
921 if ((I32)statusvalue_vms == -1) \
922 statusvalue = -1; \
923 else if (statusvalue_vms & STS$M_SUCCESS) \
924 statusvalue = 0; \
925 else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
926 statusvalue = 1 << 8; \
927 else \
928 statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
929 } STMT_END
930# define STATUS_POSIX statusvalue
931# ifdef VMSISH_STATUS
932# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
933# else
934# define STATUS_CURRENT STATUS_POSIX
935# endif
936# define STATUS_POSIX_SET(n) \
937 STMT_START { \
938 statusvalue = (n); \
939 if (statusvalue != -1) { \
940 statusvalue &= 0xFFFF; \
941 statusvalue_vms = statusvalue ? 44 : 1; \
942 } \
943 else statusvalue_vms = -1; \
944 } STMT_END
945# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
946# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
947#else
948# define STATUS_NATIVE STATUS_POSIX
949# define STATUS_NATIVE_EXPORT STATUS_POSIX
950# define STATUS_NATIVE_SET STATUS_POSIX_SET
951# define STATUS_POSIX statusvalue
952# define STATUS_POSIX_SET(n) \
953 STMT_START { \
954 statusvalue = (n); \
955 if (statusvalue != -1) \
956 statusvalue &= 0xFFFF; \
957 } STMT_END
958# define STATUS_CURRENT STATUS_POSIX
959# define STATUS_ALL_SUCCESS (statusvalue = 0)
960# define STATUS_ALL_FAILURE (statusvalue = 1)
961#endif
962
3fc1aec6 963/* Some unistd.h's give a prototype for pause() even though
964 HAS_PAUSE ends up undefined. This causes the #define
965 below to be rejected by the compmiler. Sigh.
966*/
967#ifdef HAS_PAUSE
968#define Pause pause
969#else
970#define Pause() sleep((32767<<16)+32767)
748a9306
LW		 971#endif
972
973#ifndef IOCPARM_LEN
974# ifdef IOCPARM_MASK
975 /* on BSDish systes we're safe */
976# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
977# else
978 /* otherwise guess at what's safe */
979# define IOCPARM_LEN(x) 256
980# endif
a0d0e21e
LW		 981#endif
982
79072805
LW		 983union any {
984 void* any_ptr;
985 I32 any_i32;
a0d0e21e 986 IV any_iv;
85e6fe83 987 long any_long;
a0d0e21e 988 void (*any_dptr) _((void*));
79072805
LW		 989};
990
5aabfad6 991/* Work around some cygwin32 problems with importing global symbols */
992#if defined(CYGWIN32) && defined(DLLIMPORT)
993# include "cw32imp.h"
994#endif
995
378cc40b 996#include "regexp.h"
79072805 997#include "sv.h"
378cc40b 998#include "util.h"
8d063cd8 999#include "form.h"
79072805
LW		 1000#include "gv.h"
1001#include "cv.h"
1002#include "opcode.h"
1003#include "op.h"
1004#include "cop.h"
1005#include "av.h"
1006#include "hv.h"
1007#include "mg.h"
1008#include "scope.h"
8d063cd8 1009
4633a7c4
LW		 1010/* work around some libPW problems */
1011#ifdef DOINIT
1012EXT char Error[1];
1013#endif
1014
450a55e4 1015#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c
LW		 1016# define I286
1017#endif
1018
fe14fcc3
LW		 1019#if defined(htonl) && !defined(HAS_HTONL)
1020#define HAS_HTONL
ae986130 1021#endif
fe14fcc3
LW		 1022#if defined(htons) && !defined(HAS_HTONS)
1023#define HAS_HTONS
ae986130 1024#endif
fe14fcc3
LW		 1025#if defined(ntohl) && !defined(HAS_NTOHL)
1026#define HAS_NTOHL
ae986130 1027#endif
fe14fcc3
LW		 1028#if defined(ntohs) && !defined(HAS_NTOHS)
1029#define HAS_NTOHS
ae986130 1030#endif
fe14fcc3 1031#ifndef HAS_HTONL
d9d8d8de 1032#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3
LW		 1033#define HAS_HTONS
1034#define HAS_HTONL
1035#define HAS_NTOHS
1036#define HAS_NTOHL
a687059c
LW		 1037#define MYSWAP
1038#define htons my_swap
1039#define htonl my_htonl
1040#define ntohs my_swap
1041#define ntohl my_ntohl
1042#endif
1043#else
d9d8d8de 1044#if (BYTEORDER & 0xffff) == 0x4321
fe14fcc3
LW		 1045#undef HAS_HTONS
1046#undef HAS_HTONL
1047#undef HAS_NTOHS
1048#undef HAS_NTOHL
a687059c
LW		 1049#endif
1050#endif
1051
988174c1
LW		 1052/*
1053 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1054 * -DWS
1055 */
1056#if BYTEORDER != 0x1234
1057# define HAS_VTOHL
1058# define HAS_VTOHS
1059# define HAS_HTOVL
1060# define HAS_HTOVS
1061# if BYTEORDER == 0x4321
1062# define vtohl(x) ((((x)&0xFF)<<24) \
1063 +(((x)>>24)&0xFF) \
1064 +(((x)&0x0000FF00)<<8) \
1065 +(((x)&0x00FF0000)>>8) )
1066# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1067# define htovl(x) vtohl(x)
1068# define htovs(x) vtohs(x)
1069# endif
1070 /* otherwise default to functions in util.c */
1071#endif
1072
0f85fab0 1073#ifdef CASTNEGFLOAT
79072805 1074#define U_S(what) ((U16)(what))
0f85fab0 1075#define U_I(what) ((unsigned int)(what))
79072805 1076#define U_L(what) ((U32)(what))
0f85fab0 1077#else
a6e633de 1078# ifdef __cplusplus
1079 extern "C" {
1080# endif
a0d0e21e 1081U32 cast_ulong _((double));
a6e633de 1082# ifdef __cplusplus
1083 }
1084# endif
232e078e
AD		 1085#define U_S(what) ((U16)cast_ulong((double)(what)))
1086#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1087#define U_L(what) (cast_ulong((double)(what)))
ee0007ab
LW		 1088#endif
1089
ed6116ce
LW		 1090#ifdef CASTI32
1091#define I_32(what) ((I32)(what))
a0d0e21e 1092#define I_V(what) ((IV)(what))
5d94fbed 1093#define U_V(what) ((UV)(what))
ed6116ce 1094#else
a6e633de 1095# ifdef __cplusplus
1096 extern "C" {
1097# endif
a0d0e21e 1098I32 cast_i32 _((double));
a0d0e21e 1099IV cast_iv _((double));
5d94fbed 1100UV cast_uv _((double));
a6e633de 1101# ifdef __cplusplus
1102 }
1103# endif
1104#define I_32(what) (cast_i32((double)(what)))
1105#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1106#define U_V(what) (cast_uv((double)(what)))
ed6116ce
LW		 1107#endif
1108
79072805
LW		 1109struct Outrec {
1110 I32 o_lines;
d9d8d8de 1111 char *o_str;
79072805 1112 U32 o_len;
8d063cd8
LW		 1113};
1114
352d5a3a
LW		 1115#ifndef MAXSYSFD
1116# define MAXSYSFD 2
1117#endif
ee0007ab 1118
f82b3d41 1119#ifndef TMPPATH
1120# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1121#endif
79072805
LW		 1122
1123#ifndef __cplusplus
a0d0e21e
LW		 1124Uid_t getuid _((void));
1125Uid_t geteuid _((void));
1126Gid_t getgid _((void));
1127Gid_t getegid _((void));
79072805 1128#endif
8d063cd8
LW		 1129
1130#ifdef DEBUGGING
0c30d9ec 1131#ifndef Perl_debug_log
760ac839 1132#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1133#endif
d96024cf 1134#define YYDEBUG 1
79072805
LW		 1135#define DEB(a) a
1136#define DEBUG(a) if (debug) a
1137#define DEBUG_p(a) if (debug & 1) a
1138#define DEBUG_s(a) if (debug & 2) a
1139#define DEBUG_l(a) if (debug & 4) a
1140#define DEBUG_t(a) if (debug & 8) a
1141#define DEBUG_o(a) if (debug & 16) a
1142#define DEBUG_c(a) if (debug & 32) a
1143#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1144#define DEBUG_m(a) if (curinterp && debug & 128) a
79072805
LW		 1145#define DEBUG_f(a) if (debug & 256) a
1146#define DEBUG_r(a) if (debug & 512) a
1147#define DEBUG_x(a) if (debug & 1024) a
1148#define DEBUG_u(a) if (debug & 2048) a
1149#define DEBUG_L(a) if (debug & 4096) a
1150#define DEBUG_H(a) if (debug & 8192) a
1151#define DEBUG_X(a) if (debug & 16384) a
8990e307 1152#define DEBUG_D(a) if (debug & 32768) a
79072805
LW		 1153#else
1154#define DEB(a)
1155#define DEBUG(a)
1156#define DEBUG_p(a)
1157#define DEBUG_s(a)
1158#define DEBUG_l(a)
1159#define DEBUG_t(a)
1160#define DEBUG_o(a)
1161#define DEBUG_c(a)
1162#define DEBUG_P(a)
1163#define DEBUG_m(a)
1164#define DEBUG_f(a)
1165#define DEBUG_r(a)
1166#define DEBUG_x(a)
1167#define DEBUG_u(a)
1168#define DEBUG_L(a)
1169#define DEBUG_H(a)
1170#define DEBUG_X(a)
8990e307 1171#define DEBUG_D(a)
8d063cd8 1172#endif
fe14fcc3 1173#define YYMAXDEPTH 300
8d063cd8 1174
a6e633de 1175#ifndef assert /* <assert.h> might have been included somehow */
79072805
LW		 1176#define assert(what) DEB( { \
1177 if (!(what)) { \
463ee0b2 1178 croak("Assertion failed: file \"%s\", line %d", \
79072805
LW		 1179 __FILE__, __LINE__); \
1180 exit(1); \
1181 }})
a6e633de 1182#endif
8d063cd8 1183
450a55e4 1184struct ufuncs {
a0d0e21e
LW		 1185 I32 (*uf_val)_((IV, SV*));
1186 I32 (*uf_set)_((IV, SV*));
1187 IV uf_index;
450a55e4
LW		 1188};
1189
fe14fcc3 1190/* Fix these up for __STDC__ */
68dc0745 1191#ifndef DONT_DECLARE_STD
a0d0e21e
LW		 1192char *mktemp _((char*));
1193double atof _((const char*));
1194#endif
79072805 1195
352d5a3a 1196#ifndef STANDARD_C
fe14fcc3 1197/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1198Time_t time();
8d063cd8 1199struct tm *gmtime(), *localtime();
93a17b20 1200char *strchr(), *strrchr();
378cc40b 1201char *strcpy(), *strcat();
352d5a3a 1202#endif /* ! STANDARD_C */
8d063cd8 1203
79072805
LW		 1204
1205#ifdef I_MATH
1206# include <math.h>
1207#else
1208# ifdef __cplusplus
1209 extern "C" {
1210# endif
a0d0e21e 1211 double exp _((double));
a0d0e21e 1212 double log _((double));
c635e13b 1213 double log10 _((double));
a0d0e21e 1214 double sqrt _((double));
c635e13b 1215 double frexp _((double,int*));
1216 double ldexp _((double,int));
a0d0e21e
LW		 1217 double modf _((double,double*));
1218 double sin _((double));
1219 double cos _((double));
1220 double atan2 _((double,double));
1221 double pow _((double,double));
79072805
LW		 1222# ifdef __cplusplus
1223 };
1224# endif
1225#endif
1226
a0d0e21e 1227#ifndef __cplusplus
3fc1aec6 1228#ifdef __NeXT__ /* or whatever catches all NeXTs */
1229char *crypt (); /* Maybe more hosts will need the unprototyped version */
1230#else
a0d0e21e 1231char *crypt _((const char*, const char*));
3fc1aec6 1232#endif
68dc0745 1233#ifndef DONT_DECLARE_STD
1e422769 1234#ifndef getenv
a0d0e21e 1235char *getenv _((const char*));
1e422769 1236#endif
a0d0e21e 1237Off_t lseek _((int,Off_t,int));
68dc0745 1238#endif
a0d0e21e
LW		 1239char *getlogin _((void));
1240#endif
79072805 1241
16d20bd9 1242#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1243#define UNLINK unlnk
a0d0e21e 1244I32 unlnk _((char*));
8d063cd8
LW		 1245#else
1246#define UNLINK unlink
1247#endif
a687059c 1248
fe14fcc3 1249#ifndef HAS_SETREUID
85e6fe83
LW		 1250# ifdef HAS_SETRESUID
1251# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1252# define HAS_SETREUID
1253# endif
a687059c 1254#endif
fe14fcc3 1255#ifndef HAS_SETREGID
85e6fe83
LW		 1256# ifdef HAS_SETRESGID
1257# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1258# define HAS_SETREGID
1259# endif
a687059c 1260#endif
ee0007ab 1261
ff68c719 1262typedef Signal_t (*Sighandler_t) _((int));
1263
1264#ifdef HAS_SIGACTION
1265typedef struct sigaction Sigsave_t;
1266#else
1267typedef Sighandler_t Sigsave_t;
1268#endif
1269
ee0007ab
LW		 1270#define SCAN_DEF 0
1271#define SCAN_TR 1
1272#define SCAN_REPL 2
79072805
LW		 1273
1274#ifdef DEBUGGING
4633a7c4 1275# ifndef register
a0d0e21e
LW		 1276# define register
1277# endif
55497cff 1278# ifdef MYMALLOC
1279# ifndef DEBUGGING_MSTATS
1280# define DEBUGGING_MSTATS
1281# endif
1282# endif
a0d0e21e 1283# define PAD_SV(po) pad_sv(po)
79072805 1284#else
a0d0e21e 1285# define PAD_SV(po) curpad[po]
79072805
LW		 1286#endif
1287
1288/****************/
1289/* Truly global */
1290/****************/
1291
1292/* global state */
a0d0e21e 1293EXT PerlInterpreter * curinterp; /* currently running interpreter */
0c30d9ec 1294/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1295#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
68dc0745 1296#ifndef DONT_DECLARE_STD
79072805 1297extern char ** environ; /* environment variables supplied via exec */
68dc0745 1298#endif
0c30d9ec 1299#else
1300# if defined(NeXT) && defined(__DYNAMIC__)
1301
1302# include <mach-o/dyld.h>
1303EXT char *** environ_pointer;
1304# define environ (*environ_pointer)
1305# endif
1306#endif /* environ processing */
1307
79072805
LW		 1308EXT int uid; /* current real user id */
1309EXT int euid; /* current effective user id */
1310EXT int gid; /* current real group id */
1311EXT int egid; /* current effective group id */
1312EXT bool nomemok; /* let malloc context handle nomem */
1313EXT U32 an; /* malloc sequence number */
463ee0b2 1314EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1315EXT U16 op_seqmax; /* op sequence number */
8990e307 1316EXT U32 evalseq; /* eval sequence number */
463ee0b2 1317EXT U32 sub_generation; /* inc to force methods to be looked up again */
79072805
LW		 1318EXT char ** origenviron;
1319EXT U32 origalen;
44a8e56a 1320EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1321EXT U32 * profiledata;
84ea024a 1322EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1323EXT char * osname; /* operating system */
ff68c719 1324EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1325
a0d0e21e
LW		 1326EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1327EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307
LW		 1328EXT double * xnv_root; /* free xnv list--shared by interpreters */
1329EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1330EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1331EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd 1332EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1333EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1334
79072805
LW		 1335/* Stack for currently executing thread--context switch must handle this. */
1336EXT SV ** stack_base; /* stack->array_ary */
1337EXT SV ** stack_sp; /* stack pointer now */
1338EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1339
1340/* likewise for these */
1341
1342EXT OP * op; /* current op--oughta be in a global register */
1343
1344EXT I32 * scopestack; /* blocks we've entered */
1345EXT I32 scopestack_ix;
1346EXT I32 scopestack_max;
1347
1348EXT ANY* savestack; /* to save non-local values on */
1349EXT I32 savestack_ix;
1350EXT I32 savestack_max;
1351
1352EXT OP ** retstack; /* returns we've pushed */
1353EXT I32 retstack_ix;
1354EXT I32 retstack_max;
1355
1356EXT I32 * markstack; /* stackmarks we're remembering */
1357EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1358EXT I32 * markstack_max; /* stackmarks we're remembering */
1359
1360EXT SV ** curpad;
1361
1362/* temp space */
1363EXT SV * Sv;
1364EXT XPV * Xpv;
79072805
LW		 1365EXT char tokenbuf[256];
1366EXT struct stat statbuf;
ecfc5424 1367#ifdef HAS_TIMES
79072805
LW		 1368EXT struct tms timesbuf;
1369#endif
463ee0b2 1370EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805
LW		 1371
1372/* for tmp use in stupid debuggers */
1373EXT int * di;
1374EXT short * ds;
1375EXT char * dc;
1376
1377/* handy constants */
71be2cbc 1378EXTCONST char * Yes INIT("1");
1379EXTCONST char * No INIT("");
1380EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1381EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1382EXTCONST char * vert INIT("|");
79072805 1383
71be2cbc 1384EXTCONST char warn_uninit[]
a0d0e21e 1385 INIT("Use of uninitialized value");
71be2cbc 1386EXTCONST char warn_nosemi[]
463ee0b2 1387 INIT("Semicolon seems to be missing");
71be2cbc 1388EXTCONST char warn_reserved[]
463ee0b2 1389 INIT("Unquoted string \"%s\" may clash with future reserved word");
71be2cbc 1390EXTCONST char warn_nl[]
93a17b20 1391 INIT("Unsuccessful %s on filename containing newline");
71be2cbc 1392EXTCONST char no_wrongref[]
a0d0e21e 1393 INIT("Can't use %s ref as %s ref");
71be2cbc 1394EXTCONST char no_symref[]
748a9306 1395 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
71be2cbc 1396EXTCONST char no_usym[]
8990e307 1397 INIT("Can't use an undefined value as %s reference");
71be2cbc 1398EXTCONST char no_aelem[]
93a17b20 1399 INIT("Modification of non-creatable array value attempted, subscript %d");
71be2cbc 1400EXTCONST char no_helem[]
93a17b20 1401 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
71be2cbc 1402EXTCONST char no_modify[]
93a17b20 1403 INIT("Modification of a read-only value attempted");
71be2cbc 1404EXTCONST char no_mem[]
93a17b20 1405 INIT("Out of memory!\n");
71be2cbc 1406EXTCONST char no_security[]
463ee0b2 1407 INIT("Insecure dependency in %s%s");
71be2cbc 1408EXTCONST char no_sock_func[]
93a17b20 1409 INIT("Unsupported socket function \"%s\" called");
71be2cbc 1410EXTCONST char no_dir_func[]
93a17b20 1411 INIT("Unsupported directory function \"%s\" called");
71be2cbc 1412EXTCONST char no_func[]
93a17b20 1413 INIT("The %s function is unimplemented");
71be2cbc 1414EXTCONST char no_myglob[]
748a9306 1415 INIT("\"my\" variable %s can't be in a package");
93a17b20 1416
79072805
LW		 1417EXT SV sv_undef;
1418EXT SV sv_no;
1419EXT SV sv_yes;
1420#ifdef CSH
1421 EXT char * cshname INIT(CSH);
1422 EXT I32 cshlen;
1423#endif
1424
1425#ifdef DOINIT
8e07c86e
AD		 1426EXT char *sig_name[] = { SIG_NAME };
1427EXT int sig_num[] = { SIG_NUM };
0c30d9ec 1428EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1429EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805
LW		 1430#else
1431EXT char *sig_name[];
8e07c86e 1432EXT int sig_num[];
0c30d9ec 1433EXT SV * psig_ptr[];
1434EXT SV * psig_name[];
79072805
LW		 1435#endif
1436
bbce6d69 1437/* fast case folding tables */
1438
79072805 1439#ifdef DOINIT
36477c24 1440EXTCONST unsigned char fold[] = {
79072805
LW		 1441 0, 1, 2, 3, 4, 5, 6, 7,
1442 8, 9, 10, 11, 12, 13, 14, 15,
1443 16, 17, 18, 19, 20, 21, 22, 23,
1444 24, 25, 26, 27, 28, 29, 30, 31,
1445 32, 33, 34, 35, 36, 37, 38, 39,
1446 40, 41, 42, 43, 44, 45, 46, 47,
1447 48, 49, 50, 51, 52, 53, 54, 55,
1448 56, 57, 58, 59, 60, 61, 62, 63,
1449 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1450 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1451 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1452 'x', 'y', 'z', 91, 92, 93, 94, 95,
1453 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1454 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1455 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1456 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1457 128, 129, 130, 131, 132, 133, 134, 135,
1458 136, 137, 138, 139, 140, 141, 142, 143,
1459 144, 145, 146, 147, 148, 149, 150, 151,
1460 152, 153, 154, 155, 156, 157, 158, 159,
1461 160, 161, 162, 163, 164, 165, 166, 167,
1462 168, 169, 170, 171, 172, 173, 174, 175,
1463 176, 177, 178, 179, 180, 181, 182, 183,
1464 184, 185, 186, 187, 188, 189, 190, 191,
1465 192, 193, 194, 195, 196, 197, 198, 199,
1466 200, 201, 202, 203, 204, 205, 206, 207,
1467 208, 209, 210, 211, 212, 213, 214, 215,
1468 216, 217, 218, 219, 220, 221, 222, 223,
1469 224, 225, 226, 227, 228, 229, 230, 231,
1470 232, 233, 234, 235, 236, 237, 238, 239,
1471 240, 241, 242, 243, 244, 245, 246, 247,
1472 248, 249, 250, 251, 252, 253, 254, 255
1473};
1474#else
71be2cbc 1475EXTCONST unsigned char fold[];
79072805
LW		 1476#endif
1477
1478#ifdef DOINIT
bbce6d69 1479EXT unsigned char fold_locale[] = {
1480 0, 1, 2, 3, 4, 5, 6, 7,
1481 8, 9, 10, 11, 12, 13, 14, 15,
1482 16, 17, 18, 19, 20, 21, 22, 23,
1483 24, 25, 26, 27, 28, 29, 30, 31,
1484 32, 33, 34, 35, 36, 37, 38, 39,
1485 40, 41, 42, 43, 44, 45, 46, 47,
1486 48, 49, 50, 51, 52, 53, 54, 55,
1487 56, 57, 58, 59, 60, 61, 62, 63,
1488 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1489 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1490 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1491 'x', 'y', 'z', 91, 92, 93, 94, 95,
1492 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1493 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1494 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1495 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1496 128, 129, 130, 131, 132, 133, 134, 135,
1497 136, 137, 138, 139, 140, 141, 142, 143,
1498 144, 145, 146, 147, 148, 149, 150, 151,
1499 152, 153, 154, 155, 156, 157, 158, 159,
1500 160, 161, 162, 163, 164, 165, 166, 167,
1501 168, 169, 170, 171, 172, 173, 174, 175,
1502 176, 177, 178, 179, 180, 181, 182, 183,
1503 184, 185, 186, 187, 188, 189, 190, 191,
1504 192, 193, 194, 195, 196, 197, 198, 199,
1505 200, 201, 202, 203, 204, 205, 206, 207,
1506 208, 209, 210, 211, 212, 213, 214, 215,
1507 216, 217, 218, 219, 220, 221, 222, 223,
1508 224, 225, 226, 227, 228, 229, 230, 231,
1509 232, 233, 234, 235, 236, 237, 238, 239,
1510 240, 241, 242, 243, 244, 245, 246, 247,
1511 248, 249, 250, 251, 252, 253, 254, 255
1512};
1513#else
1514EXT unsigned char fold_locale[];
1515#endif
1516
1517#ifdef DOINIT
71be2cbc 1518EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805
LW		 1519 1, 2, 84, 151, 154, 155, 156, 157,
1520 165, 246, 250, 3, 158, 7, 18, 29,
1521 40, 51, 62, 73, 85, 96, 107, 118,
1522 129, 140, 147, 148, 149, 150, 152, 153,
1523 255, 182, 224, 205, 174, 176, 180, 217,
1524 233, 232, 236, 187, 235, 228, 234, 226,
1525 222, 219, 211, 195, 188, 193, 185, 184,
1526 191, 183, 201, 229, 181, 220, 194, 162,
1527 163, 208, 186, 202, 200, 218, 198, 179,
1528 178, 214, 166, 170, 207, 199, 209, 206,
1529 204, 160, 212, 216, 215, 192, 175, 173,
1530 243, 172, 161, 190, 203, 189, 164, 230,
1531 167, 248, 227, 244, 242, 255, 241, 231,
1532 240, 253, 169, 210, 245, 237, 249, 247,
1533 239, 168, 252, 251, 254, 238, 223, 221,
1534 213, 225, 177, 197, 171, 196, 159, 4,
1535 5, 6, 8, 9, 10, 11, 12, 13,
1536 14, 15, 16, 17, 19, 20, 21, 22,
1537 23, 24, 25, 26, 27, 28, 30, 31,
1538 32, 33, 34, 35, 36, 37, 38, 39,
1539 41, 42, 43, 44, 45, 46, 47, 48,
1540 49, 50, 52, 53, 54, 55, 56, 57,
1541 58, 59, 60, 61, 63, 64, 65, 66,
1542 67, 68, 69, 70, 71, 72, 74, 75,
1543 76, 77, 78, 79, 80, 81, 82, 83,
1544 86, 87, 88, 89, 90, 91, 92, 93,
1545 94, 95, 97, 98, 99, 100, 101, 102,
1546 103, 104, 105, 106, 108, 109, 110, 111,
1547 112, 113, 114, 115, 116, 117, 119, 120,
1548 121, 122, 123, 124, 125, 126, 127, 128,
1549 130, 131, 132, 133, 134, 135, 136, 137,
1550 138, 139, 141, 142, 143, 144, 145, 146
1551};
1552#else
71be2cbc 1553EXTCONST unsigned char freq[];
79072805
LW		 1554#endif
1555
8990e307
LW		 1556#ifdef DEBUGGING
1557#ifdef DOINIT
71be2cbc 1558EXTCONST char* block_type[] = {
8990e307
LW		 1559 "NULL",
1560 "SUB",
1561 "EVAL",
1562 "LOOP",
1563 "SUBST",
1564 "BLOCK",
1565};
1566#else
71be2cbc 1567EXTCONST char* block_type[];
8990e307
LW		 1568#endif
1569#endif
1570
79072805
LW		 1571/*****************************************************************************/
1572/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1573/*****************************************************************************/
8990e307 1574/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1575
a0d0e21e
LW		 1576#include "perly.h"
1577
79072805
LW		 1578typedef enum {
1579 XOPERATOR,
1580 XTERM,
79072805 1581 XREF,
8990e307 1582 XSTATE,
a0d0e21e
LW		 1583 XBLOCK,
1584 XTERMBLOCK
79072805
LW		 1585} expectation;
1586
a0d0e21e
LW		 1587EXT U32 lex_state; /* next token is determined */
1588EXT U32 lex_defer; /* state after determined token */
1589EXT expectation lex_expect; /* expect after determined token */
1590EXT I32 lex_brackets; /* bracket count */
1591EXT I32 lex_formbrack; /* bracket count at outer format level */
1592EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1593EXT I32 lex_casemods; /* casemod count */
1594EXT I32 lex_dojoin; /* doing an array interpolation */
1595EXT I32 lex_starts; /* how many interps done on level */
1596EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1597EXT SV * lex_repl; /* runtime replacement from s/// */
1598EXT OP * lex_op; /* extra info to pass back on op */
1599EXT OP * lex_inpat; /* in pattern $) and $| are special */
1600EXT I32 lex_inwhat; /* what kind of quoting are we in */
1601EXT char * lex_brackstack; /* what kind of brackets to pop */
1602EXT char * lex_casestack; /* what kind of case mods in effect */
1603
1604/* What we know when we're in LEX_KNOWNEXT state. */
1605EXT YYSTYPE nextval[5]; /* value of next token, if any */
1606EXT I32 nexttype[5]; /* type of next token */
1607EXT I32 nexttoke;
1608
760ac839 1609EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805
LW		 1610EXT SV * linestr;
1611EXT char * bufptr;
1612EXT char * oldbufptr;
1613EXT char * oldoldbufptr;
1614EXT char * bufend;
8990e307 1615EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1616EXT AV * rsfp_filters;
79072805
LW		 1617
1618EXT I32 multi_start; /* 1st line of multi-line string */
1619EXT I32 multi_end; /* last line of multi-line string */
1620EXT I32 multi_open; /* delimiter of said string */
1621EXT I32 multi_close; /* delimiter of said string */
1622
1623EXT GV * scrgv;
1624EXT I32 error_count; /* how many errors so far, max 10 */
1625EXT I32 subline; /* line this subroutine began on */
1626EXT SV * subname; /* name of current subroutine */
1627
748a9306 1628EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1629EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307
LW		 1630EXT AV * comppad_name; /* variable names for "my" variables */
1631EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1632EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307
LW		 1633EXT I32 min_intro_pending;/* start of vars to introduce */
1634EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1635EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1636EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1637EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805
LW		 1638EXT COP compiling;
1639
79072805
LW		 1640EXT I32 thisexpr; /* name id for nothing_in_common() */
1641EXT char * last_uni; /* position of last named-unary operator */
1642EXT char * last_lop; /* position of last list operator */
8990e307 1643EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1644EXT bool in_my; /* we're compiling a "my" declaration */
79072805
LW		 1645#ifdef FCRYPT
1646EXT I32 cryptseen; /* has fast crypt() been initialized? */
1647#endif
1648
85e6fe83
LW		 1649EXT U32 hints; /* various compilation flags */
1650
1651 /* Note: the lowest 8 bits are reserved for
1652 stuffing into op->op_private */
1653#define HINT_INTEGER 0x00000001
1654#define HINT_STRICT_REFS 0x00000002
1655
1656#define HINT_BLOCK_SCOPE 0x00000100
1657#define HINT_STRICT_SUBS 0x00000200
1658#define HINT_STRICT_VARS 0x00000400
bbce6d69 1659#define HINT_LOCALE 0x00000800
85e6fe83 1660
79072805
LW		 1661/**************************************************************************/
1662/* This regexp stuff is global since it always happens within 1 expr eval */
1663/**************************************************************************/
1664
1665EXT char * regprecomp; /* uncompiled string. */
1666EXT char * regparse; /* Input-scan pointer. */
1667EXT char * regxend; /* End of input for compile */
1668EXT I32 regnpar; /* () count. */
1669EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1670EXT I32 regsize; /* Code size. */
a0d0e21e 1671EXT I32 regnaughty; /* How bad is this pattern? */
79072805
LW		 1672EXT I32 regsawback; /* Did we see \1, ...? */
1673
1674EXT char * reginput; /* String-input pointer. */
79072805
LW		 1675EXT char * regbol; /* Beginning of input, for ^ check. */
1676EXT char * regeol; /* End of input, for $ check. */
1677EXT char ** regstartp; /* Pointer to startp array. */
1678EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1679EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1680EXT char * regtill; /* How far we are required to go. */
a0d0e21e
LW		 1681EXT U16 regflags; /* are we folding, multilining? */
1682EXT char regprev; /* char before regbol, \n if none */
79072805 1683
760ac839
LW		 1684EXT bool do_undump; /* -u or dump seen? */
1685EXT VOL U32 debug;
1686
79072805
LW		 1687/***********************************************/
1688/* Global only to current interpreter instance */
1689/***********************************************/
1690
8990e307 1691#ifdef MULTIPLICITY
79072805
LW		 1692#define IEXT
1693#define IINIT(x)
1694struct interpreter {
1695#else
1696#define IEXT EXT
1697#define IINIT(x) INIT(x)
1698#endif
1699
1700/* pseudo environmental stuff */
1701IEXT int Iorigargc;
1702IEXT char ** Iorigargv;
1703IEXT GV * Ienvgv;
1704IEXT GV * Isiggv;
1705IEXT GV * Iincgv;
1706IEXT char * Iorigfilename;
748a9306
LW		 1707IEXT SV * Idiehook;
1708IEXT SV * Iwarnhook;
1709IEXT SV * Iparsehook;
79072805 1710
c07a80fd 1711/* Various states of an input record separator SV (rs, nrs) */
1712#define RsSNARF(sv) (! SvOK(sv))
1713#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1714#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1715
79072805
LW		 1716/* switches */
1717IEXT char * Icddir;
1718IEXT bool Iminus_c;
a5f75d66 1719IEXT char Ipatchlevel[10];
728e2803 1720IEXT char ** Ilocalpatches;
c07a80fd 1721IEXT SV * Inrs;
2304df62 1722IEXT char * Isplitstr IINIT(" ");
79072805
LW		 1723IEXT bool Ipreprocess;
1724IEXT bool Iminus_n;
1725IEXT bool Iminus_p;
1726IEXT bool Iminus_l;
1727IEXT bool Iminus_a;
2304df62 1728IEXT bool Iminus_F;
79072805
LW		 1729IEXT bool Idoswitches;
1730IEXT bool Idowarn;
1731IEXT bool Idoextract;
79072805
LW		 1732IEXT bool Isawampersand; /* must save all match strings */
1733IEXT bool Isawstudy; /* do fbm_instr on all strings */
79072805
LW		 1734IEXT bool Isawvec;
1735IEXT bool Iunsafe;
79072805
LW		 1736IEXT char * Iinplace;
1737IEXT char * Ie_tmpname;
760ac839 1738IEXT PerlIO * Ie_fp;
79072805 1739IEXT U32 Iperldb;
748a9306 1740 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1741IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
79072805
LW		 1742
1743/* magical thingies */
85e6fe83 1744IEXT Time_t Ibasetime; /* $^T */
79072805
LW		 1745IEXT SV * Iformfeed; /* $^L */
1746IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1747IEXT SV * Irs; /* $/ */
79072805 1748IEXT char * Iofs; /* $, */
8990e307 1749IEXT STRLEN Iofslen;
79072805 1750IEXT char * Iors; /* $\ */
8990e307 1751IEXT STRLEN Iorslen;
79072805
LW		 1752IEXT char * Iofmt; /* $# */
1753IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
f86702cc 1754IEXT int Imultiline; /* $*--do strings hold >1 line? */
91e9c03f 1755IEXT I32 Istatusvalue; /* $? */
f86702cc 1756#ifdef VMS
ff0cee69 1757IEXT U32 Istatusvalue_vms;
f86702cc 1758#endif
79072805
LW		 1759
1760IEXT struct stat Istatcache; /* _ */
1761IEXT GV * Istatgv;
1762IEXT SV * Istatname IINIT(Nullsv);
1763
1764/* shortcuts to various I/O objects */
1765IEXT GV * Istdingv;
1766IEXT GV * Ilast_in_gv;
1767IEXT GV * Idefgv;
1768IEXT GV * Iargvgv;
1769IEXT GV * Idefoutgv;
79072805
LW		 1770IEXT GV * Iargvoutgv;
1771
1772/* shortcuts to regexp stuff */
1773IEXT GV * Ileftgv;
1774IEXT GV * Iampergv;
1775IEXT GV * Irightgv;
1776IEXT PMOP * Icurpm; /* what to do \ interps from */
79072805
LW		 1777IEXT I32 * Iscreamfirst;
1778IEXT I32 * Iscreamnext;
1779IEXT I32 Imaxscream IINIT(-1);
1780IEXT SV * Ilastscream;
1781
4633a7c4
LW		 1782/* shortcuts to misc objects */
1783IEXT GV * Ierrgv;
1784
79072805
LW		 1785/* shortcuts to debugging objects */
1786IEXT GV * IDBgv;
1787IEXT GV * IDBline;
1788IEXT GV * IDBsub;
1789IEXT SV * IDBsingle;
1790IEXT SV * IDBtrace;
1791IEXT SV * IDBsignal;
1792IEXT AV * Ilineary; /* lines of script for debugger */
1793IEXT AV * Idbargs; /* args to call listed by caller function */
1794
1795/* symbol tables */
1796IEXT HV * Idefstash; /* main symbol table */
1797IEXT HV * Icurstash; /* symbol table for current package */
1798IEXT HV * Idebstash; /* symbol table for perldb package */
1799IEXT SV * Icurstname; /* name of current package */
93a17b20
LW		 1800IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1801IEXT AV * Iendav; /* names of END subroutines */
0c30d9ec 1802IEXT HV * Istrtab; /* shared string table */
79072805
LW		 1803
1804/* memory management */
79072805
LW		 1805IEXT SV ** Itmps_stack;
1806IEXT I32 Itmps_ix IINIT(-1);
1807IEXT I32 Itmps_floor IINIT(-1);
8990e307
LW		 1808IEXT I32 Itmps_max;
1809IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1810IEXT I32 Isv_objcount; /* how many objects are currently allocated */
8990e307
LW		 1811IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1812IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
79072805
LW		 1813
1814/* funky return mechanisms */
1815IEXT I32 Ilastspbase;
1816IEXT I32 Ilastsize;
1817IEXT int Iforkprocess; /* so do_open |- can return proc# */
1818
1819/* subprocess state */
1820IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
79072805
LW		 1821
1822/* internal state */
463ee0b2
LW		 1823IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1824IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1825IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1826IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1827IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1828IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1829IEXT bool Itainting; /* doing taint checks */
e50aee73 1830IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
79072805
LW		 1831
1832/* trace state */
1833IEXT I32 Idlevel;
1834IEXT I32 Idlmax IINIT(128);
1835IEXT char * Idebname;
1836IEXT char * Idebdelim;
1837
1838/* current interpreter roots */
748a9306 1839IEXT CV * Imain_cv;
463ee0b2
LW		 1840IEXT OP * Imain_root;
1841IEXT OP * Imain_start;
1842IEXT OP * Ieval_root;
1843IEXT OP * Ieval_start;
79072805
LW		 1844
1845/* runtime control stuff */
1846IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1847IEXT COP * Icurcopdb IINIT(NULL);
79072805
LW		 1848IEXT line_t Icopline IINIT(NOLINE);
1849IEXT CONTEXT * Icxstack;
1850IEXT I32 Icxstack_ix IINIT(-1);
1851IEXT I32 Icxstack_max IINIT(128);
54310121 1852IEXT JMPENV Istart_env; /* empty startup sigjmp() environment */
1853IEXT JMPENV * Itop_env; /* ptr. to current sigjmp() environment */
a0d0e21e 1854IEXT I32 Irunlevel;
79072805
LW		 1855
1856/* stack stuff */
0c30d9ec 1857IEXT AV * Icurstack; /* THE STACK */
79072805
LW		 1858IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1859IEXT SV ** Imystack_base; /* stack->array_ary */
1860IEXT SV ** Imystack_sp; /* stack pointer now */
1861IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1862
1863/* format accumulators */
463ee0b2
LW		 1864IEXT SV * Iformtarget;
1865IEXT SV * Ibodytarget;
1866IEXT SV * Itoptarget;
79072805
LW		 1867
1868/* statics moved here for shared library purposes */
93a17b20 1869IEXT SV Istrchop; /* return value from chop */
79072805
LW		 1870IEXT int Ifilemode; /* so nextargv() can preserve mode */
1871IEXT int Ilastfd; /* what to preserve mode on */
1872IEXT char * Ioldname; /* what to preserve mode on */
1873IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1874IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1875IEXT OP * Isortcop; /* user defined sort routine */
1876IEXT HV * Isortstash; /* which is in some package or other */
1877IEXT GV * Ifirstgv; /* $a */
1878IEXT GV * Isecondgv; /* $b */
1879IEXT AV * Isortstack; /* temp stack during pp_sort() */
1880IEXT AV * Isignalstack; /* temp stack during sighandler() */
1881IEXT SV * Imystrk; /* temp key string for do_each() */
1882IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
79072805
LW		 1883IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1884IEXT I32 Igensym; /* next symbol for getsym() to define */
1885IEXT bool Ipreambled;
3c81428c 1886IEXT AV * Ipreambleav;
79072805
LW		 1887IEXT int Ilaststatval IINIT(-1);
1888IEXT I32 Ilaststype IINIT(OP_STAT);
46fc3d4c 1889IEXT SV * Imess_sv;
79072805
LW		 1890
1891#undef IEXT
1892#undef IINIT
1893
8990e307 1894#ifdef MULTIPLICITY
79072805
LW		 1895};
1896#else
1897struct interpreter {
1898 char broiled;
1899};
1900#endif
1901
1902#include "pp.h"
1903
1904#ifdef __cplusplus
1905extern "C" {
1906#endif
1907
1908#include "proto.h"
1909
a0d0e21e
LW		 1910#ifdef EMBED
1911#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1912#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1913#else
1914#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1915#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1916#endif
1917
79072805
LW		 1918#ifdef __cplusplus
1919};
1920#endif
1921
93a17b20 1922/* The following must follow proto.h */
79072805
LW		 1923
1924#ifdef DOINIT
bbce6d69 1925
4633a7c4 1926EXT MGVTBL vtbl_sv = {magic_get,
463ee0b2
LW		 1927 magic_set,
1928 magic_len,
1929 0, 0};
66b1d557
HM		 1930EXT MGVTBL vtbl_env = {0, 0, 0, magic_clear_all_env,
1931 0};
4633a7c4 1932EXT MGVTBL vtbl_envelem = {0, magic_setenv,
85e6fe83
LW		 1933 0, magic_clearenv,
1934 0};
4633a7c4 1935EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec 1936EXT MGVTBL vtbl_sigelem = {magic_getsig,
1937 magic_setsig,
1938 0, magic_clearsig,
1939 0};
4633a7c4 1940EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1941 0};
4633a7c4 1942EXT MGVTBL vtbl_packelem = {magic_getpack,
463ee0b2
LW		 1943 magic_setpack,
1944 0, magic_clearpack,
1945 0};
4633a7c4 1946EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 1947 0, 0, 0};
4633a7c4 1948EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 1949 0, 0, 0};
4633a7c4 1950EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 1951 0, 0, 0};
4633a7c4 1952EXT MGVTBL vtbl_arylen = {magic_getarylen,
463ee0b2
LW		 1953 magic_setarylen,
1954 0, 0, 0};
4633a7c4 1955EXT MGVTBL vtbl_glob = {magic_getglob,
463ee0b2
LW		 1956 magic_setglob,
1957 0, 0, 0};
4633a7c4 1958EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 1959 0, 0, 0};
99abf803 1960EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
1961 0, 0, 0};
4633a7c4 1962EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 1963 0, 0, 0};
4633a7c4 1964EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 1965 0, 0, 0};
4633a7c4 1966EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 1967 0, 0, 0};
4633a7c4 1968EXT MGVTBL vtbl_pos = {magic_getpos,
a0d0e21e
LW		 1969 magic_setpos,
1970 0, 0, 0};
4633a7c4 1971EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 1972 0, 0, 0};
55497cff 1973EXT MGVTBL vtbl_fm = {0, magic_setfm,
1974 0, 0, 0};
4633a7c4 1975EXT MGVTBL vtbl_uvar = {magic_getuvar,
463ee0b2
LW		 1976 magic_setuvar,
1977 0, 0, 0};
68dc0745 1978EXT MGVTBL vtbl_defelem = {magic_getdefelem,magic_setdefelem,
1979 0, 0, magic_freedefelem};
a0d0e21e 1980
36477c24 1981#ifdef USE_LOCALE_COLLATE
bbce6d69 1982EXT MGVTBL vtbl_collxfrm = {0,
1983 magic_setcollxfrm,
1984 0, 0, 0};
1985#endif
1986
a0d0e21e 1987#ifdef OVERLOAD
4633a7c4 1988EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 1989 0, 0, magic_setamagic};
4633a7c4 1990EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 1991 0, 0, magic_setamagic};
a0d0e21e
LW		 1992#endif /* OVERLOAD */
1993
bbce6d69 1994#else /* !DOINIT */
1995
79072805
LW		 1996EXT MGVTBL vtbl_sv;
1997EXT MGVTBL vtbl_env;
1998EXT MGVTBL vtbl_envelem;
1999EXT MGVTBL vtbl_sig;
2000EXT MGVTBL vtbl_sigelem;
463ee0b2
LW		 2001EXT MGVTBL vtbl_pack;
2002EXT MGVTBL vtbl_packelem;
79072805 2003EXT MGVTBL vtbl_dbline;
463ee0b2
LW		 2004EXT MGVTBL vtbl_isa;
2005EXT MGVTBL vtbl_isaelem;
79072805
LW		 2006EXT MGVTBL vtbl_arylen;
2007EXT MGVTBL vtbl_glob;
93a17b20 2008EXT MGVTBL vtbl_mglob;
99abf803 2009EXT MGVTBL vtbl_nkeys;
463ee0b2 2010EXT MGVTBL vtbl_taint;
79072805
LW		 2011EXT MGVTBL vtbl_substr;
2012EXT MGVTBL vtbl_vec;
a0d0e21e 2013EXT MGVTBL vtbl_pos;
79072805 2014EXT MGVTBL vtbl_bm;
55497cff 2015EXT MGVTBL vtbl_fm;
79072805 2016EXT MGVTBL vtbl_uvar;
68dc0745 2017EXT MGVTBL vtbl_defelem;
a0d0e21e 2018
36477c24 2019#ifdef USE_LOCALE_COLLATE
bbce6d69 2020EXT MGVTBL vtbl_collxfrm;
2021#endif
2022
a0d0e21e
LW		 2023#ifdef OVERLOAD
2024EXT MGVTBL vtbl_amagic;
2025EXT MGVTBL vtbl_amagicelem;
2026#endif /* OVERLOAD */
2027
bbce6d69 2028#endif /* !DOINIT */
85e6fe83 2029
a0d0e21e 2030#ifdef OVERLOAD
c0315cdf 2031
a0d0e21e
LW		 2032EXT long amagic_generation;
2033
a6006777 2034#define NofAMmeth 58
a0d0e21e 2035#ifdef DOINIT
a6006777 2036EXTCONST char * AMG_names[NofAMmeth] = {
2037 "fallback", "abs", /* "fallback" should be the first. */
2038 "bool", "nomethod",
2039 "\"\"", "0+",
2040 "+", "+=",
2041 "-", "-=",
2042 "*", "*=",
2043 "/", "/=",
2044 "%", "%=",
2045 "**", "**=",
2046 "<<", "<<=",
2047 ">>", ">>=",
2048 "&", "&=",
2049 "|", "|=",
2050 "^", "^=",
2051 "<", "<=",
2052 ">", ">=",
2053 "==", "!=",
2054 "<=>", "cmp",
2055 "lt", "le",
2056 "gt", "ge",
2057 "eq", "ne",
2058 "!", "~",
2059 "++", "--",
2060 "atan2", "cos",
2061 "sin", "exp",
2062 "log", "sqrt",
2063 "x", "x=",
2064 ".", ".=",
2065 "=", "neg"
a0d0e21e
LW		 2066};
2067#else
a6006777 2068EXTCONST char * AMG_names[NofAMmeth];
a0d0e21e
LW		 2069#endif /* def INITAMAGIC */
2070
a6006777 2071struct am_table {
a0d0e21e
LW		 2072 long was_ok_sub;
2073 long was_ok_am;
a6006777 2074 U32 flags;
2075 CV* table[NofAMmeth];
a0d0e21e
LW		 2076 long fallback;
2077};
a6006777 2078struct am_table_short {
2079 long was_ok_sub;
2080 long was_ok_am;
2081 U32 flags;
2082};
a0d0e21e 2083typedef struct am_table AMT;
a6006777 2084typedef struct am_table_short AMTS;
a0d0e21e
LW		 2085
2086#define AMGfallNEVER 1
2087#define AMGfallNO 2
2088#define AMGfallYES 3
2089
a6006777 2090#define AMTf_AMAGIC 1
2091#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2092#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2093#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2094
a0d0e21e
LW		 2095enum {
2096 fallback_amg, abs_amg,
2097 bool__amg, nomethod_amg,
2098 string_amg, numer_amg,
2099 add_amg, add_ass_amg,
2100 subtr_amg, subtr_ass_amg,
2101 mult_amg, mult_ass_amg,
2102 div_amg, div_ass_amg,
2103 mod_amg, mod_ass_amg,
2104 pow_amg, pow_ass_amg,
2105 lshift_amg, lshift_ass_amg,
2106 rshift_amg, rshift_ass_amg,
748a9306
LW		 2107 band_amg, band_ass_amg,
2108 bor_amg, bor_ass_amg,
2109 bxor_amg, bxor_ass_amg,
a0d0e21e
LW		 2110 lt_amg, le_amg,
2111 gt_amg, ge_amg,
2112 eq_amg, ne_amg,
2113 ncmp_amg, scmp_amg,
2114 slt_amg, sle_amg,
2115 sgt_amg, sge_amg,
2116 seq_amg, sne_amg,
a0d0e21e
LW		 2117 not_amg, compl_amg,
2118 inc_amg, dec_amg,
2119 atan2_amg, cos_amg,
2120 sin_amg, exp_amg,
2121 log_amg, sqrt_amg,
2122 repeat_amg, repeat_ass_amg,
748a9306
LW		 2123 concat_amg, concat_ass_amg,
2124 copy_amg, neg_amg
a0d0e21e 2125};
c0315cdf
JH		 2126
2127/*
2128 * some compilers like to redefine cos et alia as faster
2129 * (and less accurate?) versions called F_cos et cetera (Quidquid
2130 * latine dictum sit, altum viditur.) This trick collides with
2131 * the Perl overloading (amg). The following #defines fool both.
2132 */
2133
2134#ifdef _FASTMATH
2135# ifdef atan2
2136# define F_atan2_amg atan2_amg
2137# endif
2138# ifdef cos
2139# define F_cos_amg cos_amg
2140# endif
2141# ifdef exp
2142# define F_exp_amg exp_amg
2143# endif
2144# ifdef log
2145# define F_log_amg log_amg
2146# endif
2147# ifdef pow
2148# define F_pow_amg pow_amg
2149# endif
2150# ifdef sin
2151# define F_sin_amg sin_amg
2152# endif
2153# ifdef sqrt
2154# define F_sqrt_amg sqrt_amg
2155# endif
2156#endif /* _FASTMATH */
2157
a0d0e21e 2158#endif /* OVERLOAD */
36477c24 2159
2160#ifdef USE_LOCALE_COLLATE
bbce6d69 2161EXT U32 collation_ix; /* Collation generation index */
2162EXT char * collation_name; /* Name of current collation */
2163EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2164EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2165EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2166#endif /* USE_LOCALE_COLLATE */
bbce6d69 2167
36477c24 2168#ifdef USE_LOCALE_NUMERIC
bbce6d69 2169
2170EXT char * numeric_name; /* Name of current numeric locale */
2171EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2172EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2173
36477c24 2174#define SET_NUMERIC_STANDARD() \
2175 STMT_START { \
2176 if (! numeric_standard) \
2177 perl_set_numeric_standard(); \
2178 } STMT_END
2179
2180#define SET_NUMERIC_LOCAL() \
2181 STMT_START { \
2182 if (! numeric_local) \
2183 perl_set_numeric_local(); \
2184 } STMT_END
bbce6d69 2185
36477c24 2186#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2187
36477c24 2188#define SET_NUMERIC_STANDARD() /**/
2189#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2190
36477c24 2191#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2192
760ac839
LW		 2193#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2194/*
2195 * Now we have __attribute__ out of the way
2196 * Remap printf
2197 */
2198#define printf PerlIO_stdoutf
2199#endif
2200
85e6fe83 2201#endif /* Include guard */
a6e633de 2202
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